I believe i can is essential if you want to build more self esteem. You have to know you can do it, it starts with believing you can. When you say repeatedly “i believe i can”your mind will eventually have no choice but to really believe what you are saying. Even if you said you could do a certain thing or perform a certain act.
You now are changed and will believe you can do it. Say this at least three times a day to yourself to have effect And never skip a day, there are no excuses, you can do this one in your head, and it takes only one or two minutes a time.